HS code 2933.69 covers Cyanuric acid & chlorinated isocyanurates (pool chemicals) — for example TCCA chlorine tablets, pool stabiliser (cyanuric acid), chlorine granules. South Africa applies an indicative general customs duty of 10%, on top of which 15% import VAT is charged.
Hazardous-goods documentation is usually required for shipping oxidising pool chemicals.
Worked example: landed cost on R100,000 of goods
| Customs value (CIF) | R100,000 |
| Customs duty (10%) | R10,000 |
| Import VAT (15% on ATV) | R18,000 |
| Estimated landed cost | R128,000 |
VAT is charged on the Added Tax Value (customs value + 10% upliftment for non-SACU imports + duties). Figures exclude clearing, freight and any anti-dumping/safeguard duty. For an exact, all-in figure use the Duty & VAT Calculator.
Where HS 2933.69 sits in the tariff
Classification is decided at heading level first. Heading 2933 is “Heterocyclic compounds with nitrogen hetero-atom(s) only”. If your product is closer to one of the neighbouring subheadings below, that line — and its duty rate — is the one that applies.
- 2933.11 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives
- 2933.19 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, other than henazone (antipyrin) and its derivatives
- 2933.21 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, hydantoin and its derivatives
- 2933.29 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, other than hydantoin and its derivatives
- 2933.31 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, pyridine and its salts
- 2933.32 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, piperidine and its salts
- 2933.33 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN)
- 2933.34 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other fentanyls and their derivatives
- 2933.35 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 3-quinuclidinol
- 2933.36 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, 4-anilino-N-phenethylpiperidine (ANPP)
- 2933.37 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, N-phenethyl-4-piperdone (NPP)
- 2933.39 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, n.e.c. in 2933.3
- 2933.41 Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, levorphanol (INN) and its salts
- 2933.49 Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, other than levorphanol (INN) and its salts
- 2933.52 Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, malonylurea (barbituric acid) and its salts
- 2933.53 Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereof
- 2933.54 Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, other derivatives of malonylurea (barbituric acid) and salts thereof, n.e.c. in 2933.53
- 2933.55 Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure; loprazolam (INN), mecloqualone (INN), methaqualone (INN), and zipeprol (INN); salts thereof
- 2933.59 Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, (other than malonylurea and its derivatives, loprazolam, mecloqualone, methaqualone, zipeprol, and salts thereof) n.e.c. in 2933.5
- 2933.61 Heterocyclic compounds; containing an unfused triazine ring (whether or not hydrogenated) in the structure, melamine
- 2933.69 Heterocyclic compounds; containing an unfused triazine ring (whether or not hydrogenated) in the structure, others excluding melamine — this page
- 2933.71 Heterocyclic compounds; lactams; 6-hexanelactam (epsilon-caprolactam)
- 2933.72 Heterocyclic compounds; lactams; clobazam (INN) and methyprylon (INN)
- 2933.79 Heterocyclic compounds; lactams; other than 6-hexanelactam (epsilon caprolactam) and clobazam (INN) and methyprylon (INN)
- 2933.91 Heterocyclic compounds; alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), (cont)
- 2933.92 Heterocyclic compounds; azinphos-methyl (ISO)
- 2933.99 Heterocyclic compounds; n.e.c. in headings no. 2933
Harmonised System HS 2022 nomenclature. See the whole of Chapter 29 →
Watch HS 2933.69 for changes
Duty rates, anti-dumping measures and permit rules change by Government Gazette. We’ll email you if this code’s status shifts.
Data current as of 2026-08-06. Indicative general (MFN) rate — real duty can differ at 8-digit level, under trade agreements (SADC, EU-EPA) and by Government Gazette. This is guidance, not a tariff determination under s47(9) of the Customs & Excise Act, 1964. Verify against the current SARS Tariff Book.
Frequently asked questions
What is the import duty on cyanuric acid & chlorinated isocyanurates (pool chemicals) in South Africa?
HS code 2933.69 (Cyanuric acid & chlorinated isocyanurates (pool chemicals)) attracts an indicative general customs duty of 10% in South Africa, plus 15% import VAT charged on the Added Tax Value. Verify the exact rate in the current SARS Tariff Book.
What is the HS code for tcca chlorine tablets?
The Harmonised System heading for cyanuric acid & chlorinated isocyanurates (pool chemicals) is 2933.69. South Africa uses an 8-digit tariff line based on this heading — confirm the precise 8-digit code in the SARS Tariff Book before importing.